CVE-2025-38582 (GCVE-0-2025-38582)
Vulnerability from cvelistv5
Published
2025-08-19 17:03
Modified
2026-08-05 12:03
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix double destruction of rsv_qp rsv_qp may be double destroyed in error flow, first in free_mr_init(), and then in hns_roce_exit(). Fix it by moving the free_mr_init() call into hns_roce_v2_init(). list_del corruption, ffff589732eb9b50->next is LIST_POISON1 (dead000000000100) WARNING: CPU: 8 PID: 1047115 at lib/list_debug.c:53 __list_del_entry_valid+0x148/0x240 ... Call trace: __list_del_entry_valid+0x148/0x240 hns_roce_qp_remove+0x4c/0x3f0 [hns_roce_hw_v2] hns_roce_v2_destroy_qp_common+0x1dc/0x5f4 [hns_roce_hw_v2] hns_roce_v2_destroy_qp+0x22c/0x46c [hns_roce_hw_v2] free_mr_exit+0x6c/0x120 [hns_roce_hw_v2] hns_roce_v2_exit+0x170/0x200 [hns_roce_hw_v2] hns_roce_exit+0x118/0x350 [hns_roce_hw_v2] __hns_roce_hw_v2_init_instance+0x1c8/0x304 [hns_roce_hw_v2] hns_roce_hw_v2_reset_notify_init+0x170/0x21c [hns_roce_hw_v2] hns_roce_hw_v2_reset_notify+0x6c/0x190 [hns_roce_hw_v2] hclge_notify_roce_client+0x6c/0x160 [hclge] hclge_reset_rebuild+0x150/0x5c0 [hclge] hclge_reset+0x10c/0x140 [hclge] hclge_reset_subtask+0x80/0x104 [hclge] hclge_reset_service_task+0x168/0x3ac [hclge] hclge_service_task+0x50/0x100 [hclge] process_one_work+0x250/0x9a0 worker_thread+0x324/0x990 kthread+0x190/0x210 ret_from_fork+0x10/0x18
References
Impacted products
Vendor Product Version
Linux Linux Version: fd8489294dd2beefb70f12ec4f6132aeec61a4d0
Version: fd8489294dd2beefb70f12ec4f6132aeec61a4d0
Version: fd8489294dd2beefb70f12ec4f6132aeec61a4d0
Version: fd8489294dd2beefb70f12ec4f6132aeec61a4d0
Version: 2ccf1c75d39949d8ea043d04a2e92d7100ea723d
Version: d2d9c5127122745da6e887f451dd248cfeffca33
Version: dac2723d8bfa9cf5333f477741e6e5fa1ed34645
Version: 60595923371c2ebe7faf82536c47eb0c967e3425
Version: 6.1.113   ≤
Version: 6.6.54   ≤
Version: 6.10.13   ≤
Version: 6.11.2   ≤
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/hns/hns_roce_hw_v2.c",
            "drivers/infiniband/hw/hns/hns_roce_main.c"
          ],
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              "version": "6.11.2",
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          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/hns/hns_roce_hw_v2.c",
            "drivers/infiniband/hw/hns/hns_roce_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "6.12"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.10",
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            },
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              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.1",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix double destruction of rsv_qp\n\nrsv_qp may be double destroyed in error flow, first in free_mr_init(),\nand then in hns_roce_exit(). Fix it by moving the free_mr_init() call\ninto hns_roce_v2_init().\n\nlist_del corruption, ffff589732eb9b50-\u003enext is LIST_POISON1 (dead000000000100)\nWARNING: CPU: 8 PID: 1047115 at lib/list_debug.c:53 __list_del_entry_valid+0x148/0x240\n...\nCall trace:\n __list_del_entry_valid+0x148/0x240\n hns_roce_qp_remove+0x4c/0x3f0 [hns_roce_hw_v2]\n hns_roce_v2_destroy_qp_common+0x1dc/0x5f4 [hns_roce_hw_v2]\n hns_roce_v2_destroy_qp+0x22c/0x46c [hns_roce_hw_v2]\n free_mr_exit+0x6c/0x120 [hns_roce_hw_v2]\n hns_roce_v2_exit+0x170/0x200 [hns_roce_hw_v2]\n hns_roce_exit+0x118/0x350 [hns_roce_hw_v2]\n __hns_roce_hw_v2_init_instance+0x1c8/0x304 [hns_roce_hw_v2]\n hns_roce_hw_v2_reset_notify_init+0x170/0x21c [hns_roce_hw_v2]\n hns_roce_hw_v2_reset_notify+0x6c/0x190 [hns_roce_hw_v2]\n hclge_notify_roce_client+0x6c/0x160 [hclge]\n hclge_reset_rebuild+0x150/0x5c0 [hclge]\n hclge_reset+0x10c/0x140 [hclge]\n hclge_reset_subtask+0x80/0x104 [hclge]\n hclge_reset_service_task+0x168/0x3ac [hclge]\n hclge_service_task+0x50/0x100 [hclge]\n process_one_work+0x250/0x9a0\n worker_thread+0x324/0x990\n kthread+0x190/0x210\n ret_from_fork+0x10/0x18"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The defect lives in the hns_roce HIP08 device init/re-init path (`__hns_roce_hw_v2_init_instance()` \u2192 `free_mr_init()`), reached via driver probe, module load, or the hns3 NIC reset-recovery notifier \u2014 never from remote packet data. Reaching or influencing it requires local access to the machine (RDMA uverbs devices, memory/resource pressure, or a locally initiated reset).\nAC:L - The double destruction fires whenever `free_mr_alloc_res()` fails partway through creating the 8 reserved QPs, since the `create_failed_qp` unwind kfree()s `free_mr-\u003ersv_qp[i]` without NULLing the array slot, leaving dangling pointers that `hns_roce_v2_exit()` \u2192 `free_mr_exit()` destroys and frees a second time. A local attacker can influence exactly that partial-failure window by driving slab/QP/CQ/PD resource exhaustion so one of the eight allocations fails after earlier ones succeeded, and the init/reset sequence is repeatable, so the required conditions are not beyond the attacker\u0027s control.\nPR:L - No authentication beyond ordinary local access is needed to create the precondition \u2014 an unprivileged user holding the usual `/dev/infiniband/uverbs*` access in an RDMA deployment can exhaust QP/CQ/PD and memory resources to make the reserved-resource allocation fail mid-loop. The init/reset trigger itself is not gated by any capability check inside the vulnerable code path.\nUI:N - The faulty unwind executes automatically inside the driver\u0027s own error path during device initialization or NIC reset recovery. No victim has to open a file, mount anything, or take any other action.\nS:U - The corrupted objects (`struct hns_roce_qp`, its lists and the kernel slab) all belong to the kernel\u0027s own security authority. There is no crossing into a hypervisor, IOMMU, or other separate security scope.\nC:H - The second `hns_roce_v2_destroy_qp()` operates entirely on freed memory \u2014 it reads `hr_qp-\u003eibqp.send_cq`/`recv_cq` and passes them to `to_hr_cq()`/`__hns_roce_v2_cq_clean()`, and uses `hr_qp-\u003eqpn` for `__xa_erase()`. If the reclaimed slab object is groomed by the attacker, those become fully controlled pointers, yielding an arbitrary kernel-memory read primitive.\nI:H - `hns_roce_qp_remove()` performs three `list_del()` unlinks on the freed object, each writing `prev-\u003enext = next; next-\u003eprev = prev` with pointers taken from reclaimed slab memory \u2014 a classic controlled-write primitive \u2014 and the object is then kfree()d a second time, corrupting the freelist. That combination is exploitable for control-flow hijack and privilege escalation.\nA:H - The reported failure is an immediate `list_del corruption ... LIST_POISON1` WARNING in `__list_del_entry_valid()` from `hns_roce_qp_remove()`, and the double kfree() corrupts the slab allocator. This reliably produces an oops/panic and leaves the RDMA device unusable."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:03:09.343Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/dab173bae3303f074f063750a8dead2550d8c782"
        },
        {
          "url": "https://git.kernel.org/stable/c/fc8b0f5b16bab2e032b4cfcd6218d5df3b80b2ea"
        },
        {
          "url": "https://git.kernel.org/stable/c/10b083dbba22be19baa848432b6f25aa68ab2db5"
        },
        {
          "url": "https://git.kernel.org/stable/c/c6957b95ecc5b63c5a4bb4ecc28af326cf8f6dc8"
        }
      ],
      "title": "RDMA/hns: Fix double destruction of rsv_qp",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38582",
    "datePublished": "2025-08-19T17:03:04.535Z",
    "dateReserved": "2025-04-16T04:51:24.026Z",
    "dateUpdated": "2026-08-05T12:03:09.343Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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